| Range | Description | ||
| 010-039 | Daily Northern Hemisphere Grids | 480-508 | Surface Hourly Observations and Precipitation |
| 040-059 | Reserved | 509-524 | Surface Summary of Day |
| 060-069 | Daily NMC Northern Hemisphere Grids | 525-529 | Climatological Data |
| 070-079 | Daily NMC Tropical Grids | 530-549 | Ship Data |
| 080-084 | Daily NMC Global Grids | 550-559 | Streamflow Data |
| 085-089 | Monthly Mean Grids | 560-589 | Monthly Mean Surface Data |
| 090-092 | NCEP Reanalysis Data | 590-599 | Reserved |
| 093-099 | Reserved | 600-629 | Meteorological Projects and Experiments |
| 100-109 | Daily Southern Hemisphere (and Tropical) Grids | 630-669 | Reserved |
| 110-119 | ECMWF and USSR Global Grids | 670-673 | Satellite Data |
| 120-179 | Reserved | 674-680 | Mesoscale Brightness Data |
| 180-192 | Stratospheric Grids | 681-704 | Miscellaneous Satellite Data |
| 193-195 | Time-Series Grids | 705-711 | Satellite-observed Ozone Data |
| 196-199 | Special Climatological Analyses | 712-749 | Miscellaneous Satellite Data |
| 200-239 | Climatological and Monthly-Mean Grids | 750-799 | Geophysical Data |
| 240-249 | Daily US Navy Hemispheric and Global Grids | 800-802 | Miscellaneous Data |
| 250-269 | Oceanographic Data and Analyses | 803-807 | Ozone Data |
| 270-299 | Climatological and Monthly-Mean Grids | 808-839 | Miscellaneous Data |
| 300-349 | Special Meteorological Analyses | 840-849 | Radar Data |
| 350-369 | Upper-Air Observations | 850-899 | Miscellaneous Data |
| 370-389 | Special Meteorological Observations | 900-909 | Station Library Information |
| 390-409 | Time-Series Raobs | 910-949 | Reserved |
| 410-429 | Reserved | 950-959 | Paleoclimatological Data |
| 430-439 | Monthly-Mean Raobs | 960-989 | Reserved |
| 440-459 | Reserved | 990-999 | Special Sets Supporting NCAR Scientists |
| 460-479 | Surface Synoptic Observations | ||
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